<template>
  <div class="user-container">
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <div slot="header" class="clearfix">
        <span>卡片名称</span>
        <el-button style="float: right; padding: 3px 0" type="text">操作按钮</el-button>
      </div>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="10">
        <el-col :span="7">
          <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column type="index" />
        <el-table-column prop="username" label="姓名" width="180" />
        <el-table-column prop="email" label="邮箱" width="180" />
        <el-table-column prop="mobile" label="电话" />
        <el-table-column prop="role_name" label="角色" />
        <el-table-column label="状态">
          <!-- 这里取到当前的单元格将el-table-column中绑定的当前行的数据对象重命名scope 父组件模板的所有东西只能在父级作用域内编译
          通过插槽作用域，自定义组件定义slot并绑定相应数据，父组件通过template，v-slot的形式去获取，(vue2.6.0版本以上)v-slot:header,header为定义了插槽名字的name -->
          <template v-slot="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)" />
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="删除" placement="top" :enterable="false">
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
    </el-card>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
    >
    </el-pagination>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部区域  -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 编辑用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo()">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <p>当前的用户：{{ userInfo.username }}</p>
      <p>当前的角色：{{ userInfo.role_name }}</p>
      <p>分配新角色：
        <el-select v-model="selectdRoledId" placeholder="请选择">
          <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
          </el-option>
        </el-select>
      </p>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script type="text/ecmascript-6">
import { log } from 'util';
export default {
  name: "",
  data() {
    //验证邮箱的规则
    var checkEamil = (rule,value,cb)=>{
      const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if(regEmail.test(value)){
        //合法邮箱
        return cb();
      }
      cb(new Error('请输入合法邮箱'));
    }
    //验证手机号的规则
    var checkMobile = (rule,value,cb)=>{
      const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/
      if(regMobile.test(value)){
        return cb()
      }
      cb(new Error("请输入合法的手机号"))
    }
    return {
      queryInfo: {
        query: "",
        pagenum: 1, //当前页数
        pagesize: 2,//当前每页显示多少条数据
        email:""
      },
      userlist: [],
      total: 0,
      addDialogVisible:false,//添加用户对话框
      addForm:{//添加用户的表单数据
        username:"",
        password:"",
        email:"",
        mobile:""
      },
      addFormRules:{//添加表单验证规则对象
        username:[//是否必填，提示消息，触发事件
          {required:true,message:"请输入用户名",trigger:"blur"},
          {min:3,max:10,message:"用户名的长度在3-10个字符之间",trigger:"blur"}
        ],
        password:[
          {required:true,message:"请输入密码",trigger:"blur"},
          {min:6,max:15,message:"密码的长度在6-15个字符之间",trigger:"blur"}
        ],
        email:[
          {required:true,message:"请输入邮箱",trigger:"blur"},
          {validator:checkEamil}//validator定义自定义规则
        ],
        mobile:[
          {required:true,message:"请输入手机号",trigger:"blur"},
          {validator:checkMobile}
        ],
      },
      editDialogVisible:false,//编辑用户对话框
      editForm:{},//查询到的用户信息对象
      editFormRules:{
        email:[
          { required:true,message:"请输入用户邮箱",trigger:"blur" },
          { validator:checkEamil,trigger:"blur" }
        ],
        mobile:[
          { required:true,message:"请输入用户手机",trigger:"blur" },
          { validator:checkMobile,trigger:"blur" }
        ] 
      },//编辑用户对话框验证规则
      setRoleDialogVisible:false,//分配角色对话框
      userInfo:"",//需要被分配权限的用户信息
      rolesList:[],//所有角色列表的数据
      selectdRoledId:''//已选中的角色id值
    };
  },
  components: {},
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
      } else {
        this.userlist = res.data.users
        this.total = res.data.total
      }
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      //当改变了每页的值应该重新获取请求获取页面数据
      this.getUserList()
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关状态改变
    async userStateChanged(userinfo){
      //${}es6字符串拼接
      const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if(res.meta.status!==200){
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error("更新用户状态失败!")
      }
      this.$message.success("更新用户状态成功")
    },
    //监听关闭对话框的事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户 validate表单预校验
    addUser(){
      this.$refs.addFormRef.validate(async (valid)=>{
        if(!valid) return
       const {data:res} = await this.$http.post("users",this.addForm)
       if(res.meta.status !== 201){
         this.$message.error("添加用户失败!")
       }
       this.$message.success("添加用户成功!")
       this.addDialogVisible = false
       //重新获取用户列表
       this.getUserList()
      })
    },
    //编辑用户的对话框
    async showEditDialog(id){
      const {data:res} = await this.$http.get("/users/" + id)
      console.log(res)
      if(res.meta.status !== 200){
        return this.$message.error("查询用户信息失败!")
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //监听编辑对话框关闭事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息,确定按钮
    editUserInfo(){
      this.$refs.editFormRef.validate(async validate=>{
        if(!validate) return
        //发起请求
        const { data:res } = await this.$http.put("users/" + this.editForm.id,{
          email:this.editForm.email,
          mobile:this.editForm.mobile
        })
        if(res.meta.status !== 200){
          return this.$message.error("更新用户信息失败!")
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success("更新用户信息成功!")
      })
    },
    //根据id删除用户信息
    async removeUserById(id){
      //弹框询问是否删除 返回是一个promise对象
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?','提示',{
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err=>err)
      //如果用户点击确定,返回值为confirm,如果用户点击取消返回cancel
      if(confirmResult !== "confirm"){
        return this.$message.info("已取消删除")
      }
     const {data:res} = await this.$http.delete("users/" + id)
     if(res.meta.status !== 200){
       this.$message.error("删除用户失败!")
     }
     this.$message.success("删除用户成功!")
     this.getUserList()
    },
    //显示分配角色对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      //获取所有角色列表
      const {data:res} = await this.$http.get("roles")
      if(res.meta.status!==200){
        return this.$message.error("获取角色列表失败!")
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //分配角色对话框确认按钮
    async saveRoleInfo(){
      if(!this.selectdRoledId){
        return this.$message.error("请选择要分配的角色!")
      }
     const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
        rid:this.selectdRoledId
      })
      if(res.meta.status !== 200){
        return this.$message.error("更新角色失败!")
      }
      this.$message.success("更新角色成功!")
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //权限对话框关闭
    setRoleDialogClosed(){
      this.selectdRoledId = ""
      this.userInfo = {}
    }
  }
};
</script>
<style lang="scss" scoped>
</style>
